$116 Cheap Flights from Missoula (MSO) to Austin (AUS)

Find available prices by choosing your travel dates.

Cheap Flights from Missoula to Austin (MSO-AUS)

Prices were available within the past 7 days and start at $116 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Hawaiian Airlines
United
American Airlines
Frontier Airlines
United
Alaska Airlines
Alaska Airlines
American Airlines
Delta
Flights from Missoula (MSO) to Austin (AUS)
Origin airport
Missoula Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Roundtrip price
$228
Distance
1449 mi

Missoula to Austin Flights

The cheapest times to fly from Missoula to Austin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Missoula to Austin are during the month of May. You can find some of the cheapest flights from Missoula to Austin with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Missoula to Austin

Sunday is one of the best days to book for cheap flights from Missoula to Austin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Missoula to Austin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Missoula to Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from $116 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Missoula to Austin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Missoula to Austin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from Missoula Intl. Airport to Austin-Bergstrom Intl. Airport (AUS) last minute?
When it comes to booking your flights, being prepared pays off. While you may be able to score a last-minute deal on a Missoula Intl. Airport to AUS flight, prices usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international journeys it’s between three and four months.
What airports do you fly into for Austin from Missoula?
Austin-Bergstrom Intl. Airport (AUS), Killeen-Fort Hood Regional Airport (GRK) and Skylark Field Airport (ILE) are your choices when traveling from Missoula to Austin. Around 6 mi southeast of the center of Austin, Austin-Bergstrom Intl. Airport (AUS) is the city’s main entry point. Consider things like flight schedules and the distance to your hotel before settling on an airport. University of Texas at Austin and Zilker Park are two top attractions to visit when you arrive.
Can I change the date of my flight from Missoula Intl. Airport to AUS?
Quickly and easily make changes to your MSO to Austin-Bergstrom Intl. Airport (AUS) ticket by logging in to the Expedia Trips portal. But before you make any amendments, browse the conditions in your itinerary to learn what the carrier will let you do and if any charges apply. Some airlines have a change fee per person, on top of any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also check out our Customer Service portal for further information and to chat with our Virtual Agent.

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*Available to One Key members.